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147900793 = 5312172293
BaseRepresentation
bin10001101000011…
…00100101111001
3101022022010202011
420310030211321
5300330311133
622402005521
73444064435
oct1064144571
9338263664
10147900793
1176539067
12416468a1
1324845581
14158dd9c5
15ceb76cd
hex8d0c979

147900793 has 8 divisors (see below), whose sum is σ = 150880968. Its totient is φ = 144927744.

The previous prime is 147900791. The next prime is 147900811. The reversal of 147900793 is 397009741.

It can be written as a sum of positive squares in 4 ways, for example, as 14197824 + 133702969 = 3768^2 + 11563^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 147900793 - 21 = 147900791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147900791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63355 + ... + 65647.

It is an arithmetic number, because the mean of its divisors is an integer number (18860121).

Almost surely, 2147900793 is an apocalyptic number.

It is an amenable number.

147900793 is a deficient number, since it is larger than the sum of its proper divisors (2980175).

147900793 is a wasteful number, since it uses less digits than its factorization.

147900793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 147900793 is about 12161.4469944986. The cubic root of 147900793 is about 528.8390310729.

The spelling of 147900793 in words is "one hundred forty-seven million, nine hundred thousand, seven hundred ninety-three".

Divisors: 1 53 1217 2293 64501 121529 2790581 147900793